понедельник, 7 апреля 2008 г.

MySql backup

#!/bin/bash## MySQL Backup Script# VER. 2.5 - http://sourceforge.net/projects/automysqlbackup/# Copyright (c) 2002-2003 wipe_out@lycos.co.uk## This program is free software; you can redistribute it and/or modify# it under the terms of the GNU General Public License as published by# the Free Software Foundation; either version 2 of the License, or# (at your option) any later version.## This program is distributed in the hope that it will be useful,# but WITHOUT ANY WARRANTY; without even the implied warranty of# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the# GNU General Public License for more details.## You should have received a copy of the GNU General Public License# along with this program; if not, write to the Free Software# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA##=====================================================================#=====================================================================# Set the following variables to your system needs# (Detailed instructions below variables)#=====================================================================

# Mail setup# What would you like to be mailed to you?# - log : send only log file# - files : send log file and sql files as attachments (see docs)# - stdout : will simply output the log to the screen if run manually.# - quiet : Only send logs if an error occurs to the MAILADDR.MAILCONTENT="stdout"

# Additionally keep a copy of the most recent backup in a seperate directory.LATEST=no

# The maximum size of the buffer for client/server communication. e.g. 16MB (maximum is 1GB)MAX_ALLOWED_PACKET=

# For connections to localhost. Sometimes the Unix socket file must be specified.SOCKET=

# Command to run before backups (uncomment to use)#PREBACKUP="/etc/mysql-backup-pre"

# Command run after backups (uncomment to use)#POSTBACKUP="/etc/mysql-backup-post"

#=====================================================================# Options documantation#=====================================================================# Set USERNAME and PASSWORD of a user that has at least SELECT permission# to ALL databases.## Set the DBHOST option to the server you wish to backup, leave the# default to backup "this server".(to backup multiple servers make# copies of this file and set the options for that server)## Put in the list of DBNAMES(Databases)to be backed up. If you would like# to backup ALL DBs on the server set DBNAMES="all".(if set to "all" then# any new DBs will automatically be backed up without needing to modify# this backup script when a new DB is created).## If the DB you want to backup has a space in the name replace the space# with a % e.g. "data base" will become "data%base"# NOTE: Spaces in DB names may not work correctly when SEPDIR=no.## You can change the backup storage location from /backups to anything# you like by using the BACKUPDIR setting..## The MAILCONTENT and MAILADDR options and pretty self explanitory, use# these to have the backup log mailed to you at any email address or multiple# email addresses in a space seperated list.# (If you set mail content to "log" you will require access to the "mail" program# on your server. If you set this to "files" you will have to have mutt installed# on your server. If you set it to "stdout" it will log to the screen if run from# the console or to the cron job owner if run through cron. If you set it to "quiet"# logs will only be mailed if there are errors reported. )## MAXATTSIZE sets the largest allowed email attachments total (all backup files) you# want the script to send. This is the size before it is encoded to be sent as an email# so if your mail server will allow a maximum mail size of 5MB I would suggest setting# MAXATTSIZE to be 25% smaller than that so a setting of 4000 would probably be fine.## Finally copy automysqlbackup.sh to anywhere on your server and make sure# to set executable permission. You can also copy the script to# /etc/cron.daily to have it execute automatically every night or simply# place a symlink in /etc/cron.daily to the file if you wish to keep it# somwhere else.# NOTE:On Debian copy the file with no extention for it to be run# by cron e.g just name the file "automysqlbackup"## Thats it..### === Advanced options doc's ===## The list of MDBNAMES is the DB's to be backed up only monthly. You should# always include "mysql" in this list to backup your user/password# information along with any other DBs that you only feel need to# be backed up monthly. (if using a hosted server then you should# probably remove "mysql" as your provider will be backing this up)# NOTE: If DBNAMES="all" then MDBNAMES has no effect as all DBs will be backed# up anyway.## If you set DBNAMES="all" you can configure the option DBEXCLUDE. Other# wise this option will not be used.# This option can be used if you want to backup all dbs, but you want# exclude some of them. (eg. a db is to big).## Set CREATE_DATABASE to "yes" (the default) if you want your SQL-Dump to create# a database with the same name as the original database when restoring.# Saying "no" here will allow your to specify the database name you want to# restore your dump into, making a copy of the database by using the dump# created with automysqlbackup.# NOTE: Not used if SEPDIR=no## The SEPDIR option allows you to choose to have all DBs backed up to# a single file (fast restore of entire server in case of crash) or to# seperate directories for each DB (each DB can be restored seperately# in case of single DB corruption or loss).## To set the day of the week that you would like the weekly backup to happen# set the DOWEEKLY setting, this can be a value from 1 to 7 where 1 is Monday,# The default is 6 which means that weekly backups are done on a Saturday.## COMP is used to choose the copmression used, options are gzip or bzip2.# bzip2 will produce slightly smaller files but is more processor intensive so# may take longer to complete.## COMMCOMP is used to enable or diable mysql client to server compression, so# it is useful to save bandwidth when backing up a remote MySQL server over# the network.## LATEST is to store an additional copy of the latest backup to a standard# location so it can be downloaded bt thrid party scripts.## If the DB's being backed up make use of large BLOB fields then you may need# to increase the MAX_ALLOWED_PACKET setting, for example 16MB..## When connecting to localhost as the DB server (DBHOST=localhost) sometimes# the system can have issues locating the socket file.. This can now be set# using the SOCKET parameter.. An example may be SOCKET=/private/tmp/mysql.sock## Use PREBACKUP and POSTBACKUP to specify Per and Post backup commands# or scripts to perform tasks either before or after the backup process.###=====================================================================# Backup Rotation..#=====================================================================## Daily Backups are rotated weekly..# Weekly Backups are run by default on Saturday Morning when# cron.daily scripts are run...Can be changed with DOWEEKLY setting..# Weekly Backups are rotated on a 5 week cycle..# Monthly Backups are run on the 1st of the month..# Monthly Backups are NOT rotated automatically...# It may be a good idea to copy Monthly backups offline or to another# server..##=====================================================================# Please Note!!#=====================================================================## I take no resposibility for any data loss or corruption when using# this script..# This script will not help in the event of a hard drive crash. If a# copy of the backup has not be stored offline or on another PC..# You should copy your backups offline regularly for best protection.## Happy backing up...##=====================================================================# Restoring#=====================================================================# Firstly you will need to uncompress the backup file.# eg.# gunzip file.gz (or bunzip2 file.bz2)## Next you will need to use the mysql client to restore the DB from the# sql file.# eg.# mysql --user=username --pass=password --host=dbserver database < /path/file.sql# or# mysql --user=username --pass=password --host=dbserver -e "source /path/file.sql" database## NOTE: Make sure you use "" in the above command because# you are piping the file.sql to mysql and not the other way around.## Lets hope you never have to use this.. :)##=====================================================================# Change Log#=====================================================================## VER 2.5 - (2006-01-15)# Added support for setting MAXIMUM_PACKET_SIZE and SOCKET parameters (suggested by Yvo van Doorn)# VER 2.4 - (2006-01-23)# Fixed bug where weekly backups were not being rotated. (Fix by wolf02)# Added hour an min to backup filename for the case where backups are taken multiple# times in a day. NOTE This is not complete support for mutiple executions of the script# in a single day.# Added MAILCONTENT="quiet" option, see docs for details. (requested by snowsam)# Updated path statment for compatibility with OSX.# Added "LATEST" to additionally store the last backup to a standard location. (request by Grant29)# VER 2.3 - (2005-11-07)# Better error handling and notification of errors (a long time coming)# Compression on Backup server to MySQL server communications.# VER 2.2 - (2004-12-05)# Changed from using depricated "-N" to "--skip-column-names".# Added ability to have compressed backup's emailed out. (code from Thomas Heiserowski)# Added maximum attachment size setting.# VER 2.1 - (2004-11-04)# Fixed a bug in daily rotation when not using gzip compression. (Fix by Rob Rosenfeld)# VER 2.0 - (2004-07-28)# Switched to using IO redirection instead of pipeing the output to the logfile.# Added choice of compression of backups being gzip of bzip2.# Switched to using functions to facilitate more functionality.# Added option of either gzip or bzip2 compression.# VER 1.10 - (2004-07-17)# Another fix for spaces in the paths (fix by Thomas von Eyben)# Fixed bug when using PREBACKUP and POSTBACKUP commands containing many arguments.# VER 1.9 - (2004-05-25)# Small bug fix to handle spaces in LOGFILE path which contains spaces (reported by Thomas von Eyben)# Updated docs to mention that Log email can be sent to multiple email addresses.# VER 1.8 - (2004-05-01)# Added option to make backups restorable to alternate database names# meaning that a copy of the database can be created (Based on patch by Rene Hoffmann)# Seperated options into standard and advanced.# Removed " from single file dump DBMANES because it caused an error but# this means that if DB's have spaces in the name they will not dump when SEPDIR=no.# Added -p option to mkdir commands to create multiple subdirs without error.# Added disk usage and location to the bottom of the backup report.# VER 1.7 - (2004-04-22)# Fixed an issue where weelky backups would only work correctly if server# locale was set to English (issue reported by Tom Ingberg)# used "eval" for "rm" commands to try and resolve rotation issues.# Changed name of status log so multiple scripts can be run at the same time.# VER 1.6 - (2004-03-14)# Added PREBACKUP and POSTBACKUP command functions. (patch by markpustjens)# Added support for backing up DB's with Spaces in the name.# (patch by markpustjens)# VER 1.5 - (2004-02-24)# Added the ability to exclude DB's when the "all" option is used.# (Patch by kampftitan)# VER 1.4 - (2004-02-02)# Project moved to Sourceforge.net# VER 1.3 - (2003-09-25)# Added support for backing up "all" databases on the server without# having to list each one seperately in the configuration.# Added DB restore instructions.# VER 1.2 - (2003-03-16)# Added server name to the backup log so logs from multiple servers# can be easily identified.# VER 1.1 - (2003-03-13)# Small Bug fix in monthly report. (Thanks Stoyanski)# Added option to email log to any email address. (Inspired by Stoyanski)# Changed Standard file name to .sh extention.# Option are set using yes and no rather than 1 or 0.# VER 1.0 - (2003-01-30)# Added the ability to have all databases backup to a single dump# file or seperate directory and file for each database.# Output is better for log keeping.# VER 0.6 - (2003-01-22)# Bug fix for daily directory (Added in VER 0.5) rotation.# VER 0.5 - (2003-01-20)# Added "daily" directory for daily backups for neatness (suggestion by Jason)# Added DBHOST option to allow backing up a remote server (Suggestion by Jason)# Added "--quote-names" option to mysqldump command.# Bug fix for handling the last and first of the year week rotation.# VER 0.4 - (2002-11-06)# Added the abaility for the script to create its own directory structure.# VER 0.3 - (2002-10-01)# Changed Naming of Weekly backups so they will show in order.# VER 0.2 - (2002-09-27)# Corrected weekly rotation logic to handle weeks 0 - 10# VER 0.1 - (2002-09-21)# Initial Release##=====================================================================#=====================================================================#=====================================================================## Should not need to be modified from here down!!##=====================================================================#=====================================================================#=====================================================================PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/mysql/binDATE=`date +%Y-%m-%d_%Hh%Mm` # Datestamp e.g 2002-09-21DOW=`date +%A` # Day of the week e.g. MondayDNOW=`date +%u` # Day number of the week 1 to 7 where 1 represents MondayDOM=`date +%d` # Date of the Month e.g. 27M=`date +%B` # Month e.g JanuaryW=`date +%V` # Week Number e.g 37VER=2.5 # Version NumberLOGFILE=$BACKUPDIR/$DBHOST-`date +%N`.log # Logfile NameLOGERR=$BACKUPDIR/ERRORS_$DBHOST-`date +%N`.log # Logfile NameBACKUPFILES=""OPT="--quote-names --opt" # OPT string for use with mysqldump ( see man mysqldump )